It is
NOT
recommended to use several timelines and planar moves for
a single animation. The following behavior uses several timeline and planar move
boxes, synchronized with timer boxes. It is a wrong design.
Bad method:

The rationale behind this practice is that precise synchronization of timelines
and planar moves is not guaranteed over multiple calls. The precise duration of
each planar move depends on the robot environment, and is not perfectly predictable.
The duration variations of several planar moves played in a row will add up,
potentially resulting in a de-synchronization with the articular timeline.